Doctor works with unknown fluid problem (6)
I believe the answer is:
dropsy
'fluid problem' is the definition.
The definition and answer can be both states of affairs as well as being singular nouns.
Maybe you can see a link between them that I don't see?
'doctor works with unknown' is the wordplay.
'doctor' becomes 'Dr' (abbreviation).
'works' becomes 'ops' (op is short for opus, a work).
'with' means one lot of letters go next to another.
'unknown' becomes 'y' (algebra).
'dr'+'ops'+'y'='DROPSY'
Can you help me to learn more?
(Other definitions for dropsy that I've seen before include "Accumulation of fluid in a part of the body - oedema" , "medical condition" , "illness" , "Oedema (old name)" , "fluid build-up" .)